Fan



March 21, 1939. Y. SHU 2,151,643

FAN

F'iled Jan. ll, 1938 ATTORNEY Patented Mar.21, 1939 a 1519643 STATES PATENT orriol:

' FAN Aroligaiion January 11, 193,8, serial No. 184,472

InJapanrJanuai-y 11, 1937 inyention relates to f ans driven by electric I4 of ,said stud engages in a straight radial groove motors, Iand more particularly to fans which 20 in the holder I9 so as to slide in said groove. viivljiile being rotated also have an oscillating At lll in Fig. 3 is shown a stud secured to the movement. holder I9 and entering a straight groove II 5 The lobject ofthe present invention is to proformed by the hollow arm 4,-which, therefore, 5 vde 4means v enabling one to readily control said can execute a sliding motion relative to said Oscillating movement `so as to vary the oscillastud I B. 'Ihe latter passes through the circular .tions of the fan from zero ,to the largest range slot II. in disk I3. ,of oscillation, Without any interruption in the From the foregoing it will lne-understood that l :operation of the fan. This object I accomplish as the disk I3 by means of its finger-piece lb l() simple and inexpensive means, as will appear is turned in a counter-'clockwise direction asinfrom the following description of the invention. dicated by the arrow in Fig. 2, the cam-slot .I2 ,On vthe annexed ,drawing, on which I have in said disk, by reason .of` the stud I4 passing shown, by Way of illustration an embodiment of through said slot and engaging in the segmental l5 my invention, channel I5 on the underside of the quadrantl5 Fig. l is a side-View of the entire fan and its shaped member 8 will impart to said member a motor, Fig. 2 a section along line 2 2 in Fig. 1 sliding movement relative to the square head I on a greatly enlarged scale, Fig. 3 a section along of the center pin 6, whereby the hollovved arm 4 line 3 3 in Fig. 2 and Fig. 4 a section along line pivoted to member 8 will be moved from its full- 4 4 in Fig. 2. line position shown in Fig. 2 to its broken line 3l) As shown in Fig. 1, the oscillating fan, toposition. In this position, the pivot pin Ill pivgether with its driving motor 'indicated at I, is otally Connecting the hOlOWed arm l With the mounted, by means of a holder I9 on a base B quadrant-shaped member 8 will be in line With in such a way, that the fan can be tilted forwards the stud I8, and as the disk 2 revolves, it will im- 4 n a5 and backwards, A1; 22 is shown a, fastening screw part merely a rocking motion to the hollovved arm il for holding the fan in any position to which it 4 21301111 the DVO Dill l0 Without Causing any may be tilted. oscillating movement of the motor casing and At 6 in. Fig. 2 is shown a 'center pin, by means the fan by means 0f the quadrant-Shaped mem of which the casing of the driving motor I carber 8. rying the fan is journalled in the fixed holder I9 When now the slotted disk I3 by means of its "l so that it can be oscillated. The said pin 6 has linger-piece I6 is rotated in the Clockwise direoa square head lshown at "I, which enters a rection in Fig. 2, the quadrant-Shaped member 3, by tangular slot 9 in a quadrant-shaped member 8, means of the stud I4 through its cooperation with which can execute a sliding motion relative to the the cam-slot I2 and the segmental channel I5 on 'y u said pin E. the underside of member 8, will be caused to At 2 is shown a revolving disk which by means slide in the other direction, and the hollovved arm of a reduction gear is continually rotated by the 4 will be moved back to its full-lino position driving motor I. At 3 in Fig. 2 is shown a link shown in Fis. 2, in which the pivot pin 5 oon- With one end eccentrically attached by a pivot to neclilng the link 3 With arm 4 Wlll be ln lille Wllll "l0 said revolving disk 2 and with its other end conllhe Stud la as Shown ln Flg- 3- In this position ""0 n ected by a pvot 5 with a houwed arm shown there Will be no rocking motion of the arm 4 so in Fig 2 at 4' The. other end of Said arm 4 is that as the disk 2 revolves, the motor casing I .connected by a pivot m with Said quadrant together With the fan will be oscillated back and Shaped member -8' forth by rgieans1 of tle 3 anilarm Itiirioiilgh isgrea es ange. Wi erea iyseen a is il holl' 'als shwn a' .gulalltnl dlsklestmg. on t?? angle can be nicely varied by the slotted disk I3 er an mol/ 1 W1 l' a' ger weee being turned to intermediate positions as indi- Wherebylhe s 1d-d1sk may bf2 turned abut llhe cated by the gradation lines shown in Fig. 2, so center pin 6 1n either directlon. The said disk that the fan While Operating may be Oscillated 0 has, as will be seen from Fig. 2, a circular slot I I v u Y from zero to its greatest angle. and a' Camshaped Slot l2- Al' '4 ln Flg 3 1S While I have shown and described a preferred ShOWH a Stud, WhCh passes tllIOllgll the Camembodiment of my invention, the same is, of shaped slot I2 in disk I3 and engages in a segcourse, capable of modications which fau Within mental channel I5 provided on the underside of the scope of the appended claims, in which the the quadrant-shaped member 8, While the head invention is defined in its essential features.

I claim:

1. In an oscillating fan, the combination with the motor, a fan driven thereby, and a holder pivotally supporting the motor and the fan, of a revolving disk apart from said motor being rotated thereby, a sliding member adapted to be shifted relative to the pivotal axis of the fan, a link operatively connecting said sliding member With said revolving disk, a rotatable disk having a cam-slot operatively associated with said sliding member, and means for turning said rotatable disk in either direction so as to cause the shifting of said sliding member to thereby vary the range of oscillations.

2. In an oscillating fan, the combination with the motor, a fan driven thereby, and a holder pivotally supporting the motor and the fan, of a revolving disk apart from said motor being rotated thereby, a sliding member adapted to be shifted relative to the pivotal axis of the fan, an arm pivoted to said sliding member, a link jointed to said arm and operatively connecting thereby said sliding member with said revolving disk, a rotatable disk having a cam-slot operatively associated with said sliding member, and means for turning said rotatable disk in either direction so as to cause the shifting of said sliding member to thereby vary the rangey of oscillations.

3. In an oscillating fan, the combination with the motor, a fan driven thereby and a holder pivotally supporting the motor and the fan, of a revolving disk apart from said motor being rotated thereby, a sliding member adapted to be shifted relative to the pivotal axis of the fan, a link operatively connecting said sliding member with said revolving disk, a stud engaging both a segmental channel on said sliding member and a straight radial groove in said holder, a rotatable disk having a cam-slot engaging said stud, and means for turning said rotatable disk in either direction so as to cause the cam-slot in said disk to shift said sliding member being guided by said stud moving in the radial groove to thereby vary the range of the oscillations.

4. In an oscillating fan, the combination with the motor, a fan driven thereby and a holder pivotally supporting the motor and th-e fan, of a revolving disk apart from said motor being rotated thereby, a sliding member adapted to be shifted relative to the pivotal axis of the fan, an arm pivoted to said sliding member, a. link jointed to said arm and operatively connecting thereby said sliding member with said revolving disk, a stud engaging both a segmental channel on said sliding member and a straight radial groove in said holder, a rotatable disk having a cam-slot engaging said stud, means for turning said rotatable disk in either direction so as to cause the cam-slot in said disk to shift said sliding member being guided by said stud moving in the radial groove to thereby vary the range of the oscillations, and a second stud iixed in said holder and engaging a groove in the underside of said arm, said second stud entering a segmental slot in said rotatable disk.

YOSHITERU SHU. 

